| 摘要 |
PURPOSE:To convert effectively teaching program data for the execution of operation accompanied with weaving by providing a main conversion means for coordinate conversion and an auxiliary conversion means which corrects the change of the weaving amplitude due to coordinate conversion. CONSTITUTION:A work at the teaching time is different from an actual work 100', and a main conversion means 20 uses a conversion matrix M to convert position data P0, P1, P2, P3... belonging to teaching program data to position data P'0, P'11, P'22, P'3... by coordinate conversion. Data related to weaving auxiliary points out of converted data correspond to weaving temporary auxilia ry points P11 and P22. An auxiliary conversion means 30 subjects data indicating weaving temporary auxiliary points P11 and P22 to correcting conversion for the purpose of cancelling the change of the weaving amplitude accompanied with said coordinate conversion. Data of original weaving auxiliary points P1 and P2 are referred besides original weaving temporary auxiliary points. As the result, the length of the vector indicating the weaving auxiliary point P1 or P'1 coincides with the weaving amplitude accurately.
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